Sole rounding and cutting machine.



S. A. DUBYNE.

SOLE ROUNDING AND CUTTING MACHINE.

APPLICATION FILED IAILII. 19I5.

g. Patent-ea OCI.. 30,1917.

IIIt I sas rrnn 'union STEPHEN A. DOBYNE, OF ST.' LOUIS,` MISSOURI,ASSIGNOR ,T0 CIIAMPION SHOE MACHINERY COMPANY, F ST. LOUIS, MISSOURI, ACORPORATION OF MIS- SOURI.

Specification of Letters Patent.

Patented Oct. 30, 1911*?.

Application filed January 8, 1915. Serial No. 1,174.

To all whom t may concern:

Be it known that I, STEPHEN A. DoBYNn, a citizen of the United States,and residing at St. Louis, in the State ofMissouri, have invented acertain new and useful Improvement in Sole Rounding and CuttingMachines, of which the following is a specification.

This invention relates to machines for rounding or cutting shoe soles.

One of the objects of this invention is to provide a machine which canbe used, either to cut the sole from stock, or rough round the solewhile on the shoe.

Another object is to provide a machine in which the stock will be guidedaccurately when cutting the sole out of stock, and in which the shoewill be guided accurately when rounding the sole while on the shoe.

Further objects will appear from the detail description taken inconnection with the accompanying drawing, in which:

Figure 1 is, a side elevation of a machine embodying this invention;

F ig. 2 is an enlarged section on the line 2-2, Fig. l;

F ig. 3 is an enlarged section on the line 3 3, nig. 1; l

Fig. 4 is an enlarged detail plan view of the table;

Fig. 5 is an enlarged detail perspective view of the presser foot; and,

Fig. 6 is an enlarged detail of Fig. 1.

Referring to the accompanying drawing, 10 designates a column or supportforming a suitable base for the machine, and 11 and 12 arms,respectively integral with and secured to the column or support. vThearm 12 is provided with bearings for the drive shaft 13, which hasmounted thereon afly wheel 14 and a pulley 15 driven by a belt 16 fromany suitable source of power.

The arm 11 is provided with a vertical boss 20 forming a support for andengaged by a boss 21 on the work table hereinafter to be described. Theboss 20 is bored toL receive a vertical hollow shaft 22 entering theboss 21, and this shaft is clamped in the boss 20 by a setscrew 23, andin the boss 21 by a setscrew 26. The table V24 is of sector form, and isintegral 'with the boss 21 and braced by webs or ribs 25. The y centerof the sector is approximately at the axis of the table, as shown inFig. 4, and

the table is provided, at this center point, with a slot 27. The boss 21is beveled, as shown at 28, this bevel running up to and miiging intothe sides of the sector of the ta e.

The arm 12 has formed integral therewith a pair of bearing lugs 32 and33 braced by webs or ribs 34, and these lugs are further connected by ayoke 35. A cutter carrier 36 is mounted for vertical movement in thebearing lugs, and this carrier is forked, as shown at 37, to receive a.spline 38 on a bracket 39 secured to the lug 32 by a screw 40. Thefunction of the spline is to hold the cutter carrier against turningwhile being reciprocated. A split sleeve 41 is clamped to the cuttercarrier by screws 42, and this sleeve has a transverse guideway formedby a pair of ribs 43 to receive a block 44 on a crank pin 45 mounted ona crank disk 46- iXed to the shaft 13. The

cutter carrier has mounted thereon a cutter blade. 47 having atransverse cutting edge 48 and a projecting part 49 normally positionedin the slot 27. This cutter blade co operates with the slot 27 to cutthe material. This cutter blade and its method of operation are fullydescribed in U. S. Patent #1,067,165, July e, 191e.

A presser foot shank 55 is mounted for vertical movement in the lugs 32and 33, .and this presser foot has iiXed to its upper end a head 56sliding on a pin 57. A nut 58 engages the threaded part 59 of the pin57, and a spring 60 encircles the pin and bears against the head 56. Thepresser foot shank has mounted thereon a collar 61 pro-- `,vided with apresser foot 62. This presser foot has gaging faces 63 and 64, and a web65 which braces the cutter blade 47.

The operation of this machine is as follows: Rotation of the drive shaft13 will vibrate the cutter vertically. During the operation of thecutter the cutting is performed by the cutting edge 48, While theprojection 49 enters the kerf made by the cutter, and thus facilitatesthe guiding of the material. During the operation of the cutter, thepresser foot is set down on the work so as to hold the work againstmovenient.

In order to round a shoe sole, the shoe is placed with its sole down onthe table, with the presser foot bearing on the sole, and

is guided j; the engage-nient or foot with the upper, so es accuratelyround the sole. The preeser oot also acte es e loreoe tor bracing" thecntten ./is this device is especially designed lor repair Werl; in whichthe sole must he rounded While heel is on the shoe, ditiienlties ereordinarily encountered when it is desired to round the sole @lose to theheel joreest. .in accordance with this invention, however, the hevelingof the table et 28, and the sector torni or" the tefole permit the soleto be rounded close up to the heel breast.

T1When it is desired to out soles aEroin stock, the stock is leid on thetehle, the Gutter een then he readily innde "follow the nt line of thesole on the steelt, especially since the projection 19, which nieves thehert, facilitates guiding. hen desir-ed, the tehle may he swung aroundthrough i530 degrees oie ite ypresent position.

lt is obvious that v#anions changes niej; be nie-de in the details ofeonstrnetion Without departing from t e eniit et this invention. lt is,therefore, to oe understood that this invention is not to loe limitedthe soeeiio construction shown end deecrihed.

Aien/ing thus described the invention, what is claimed is:

l. in e sole cutting; machine, e support, a Werl; teble of sector fornimounted on seid support, and e 'vibrating cutter opere-ting with seidtehle et the intersection of the sides of theY sector, the piene of thesector seeing disposed transversely ot the line or out.

2. ln e sole Cutting machine, e. support, e Work table or sector fornimounted on seid support, and e vibrating cutter operating with seidtel-ole etV Lhe intersection of trie sides oi" the seetor, the piene ofthe eeotor oeing disposed trensvereely or" the line or" ont end table"being4 movable on seid support about the line of movement of seidcette?.

3. e sole cutting machine, e support, e Work tehle et sector fornimounted on seid support, e. vibrating cutter operating with seid tableet the intersection or" the sides of the sector, the plane of the sectorbeing disposed Lrensversely of the line of out and seid table being*movable onV seid support about the line of movement or" said cutter, andineens for locking seid talole in its different adjusted positions.

el. ln e sole cutting4 machine, e sup-port, horizontal Work telole oisector forni mounted on said support, and e cutter operating With saidtable et the intersection of the sides of the sector, the plane of thesector being disposed transversely of' the line oi cnt and seid tableharing its surface beveled adjacent seid cutter for the purpose setforth.

A 5. ln e. Sole cutting1 machine, e. support, e. Work table of Sectorforni mounted on Seid support, seid table haring e. slot et theintersection of the sides of seid Sector and the edge of said tehlebeing; beveled adjacent seid slot, and e. vibrating Cutter moving inseid slot, the plane of the eeetoi' being disposed trnneverseli'v of theline of ont.

y 6. ln a sole cutting1 machine, e, support, e

Werl; table ot sector forni mounted on said support, seid table having;e slot et the intcrsection of the sides of said Sector andthe edge otsaid table being beveled adj acent said slot, t vibrating Cutter movingin seid slot, and e presser-foot cooperating With seid table, the planeof the sector being disposed treneif'eisely of the line of ont.

in testimony whereof l effin my signature in the presence of these twoWitneeses.

ernennn n. nonrnn,

